I`m not sure the Stobart model is very common at all.It is a most unusual model...they own the lease on the aerodrome,constructed all facilities inc the terminal & control tower & railway station & carparks they also control a lot of other ancillary spinoffs,even a recently advertised helicopter shuttle service is managed by Stobart Air & stand to be corrected the BizAv "terminal" is probably managed by them too....not of course forgetting Stobart Air itself the airline,currently engaged in a large push for pax at their own airfield...